2 Replies Latest reply on Mar 20, 2015 1:34 AM by Jared Conway

    Transient Analysis - To reach max. Temperature in chip

    AJAY SELVAM

      Dear Experts,

       

      I am working with Thermal Analysis where chips are at various watts and it is Transient analysis. The Flow is cut off and need to check for "how long equipment can withstand before reaching max. range"

      The objective is to find the TIME TAKEN to reach Max. Temperature in the chip components !!!

       

      What do you feel....

        • Re: Transient Analysis - To reach max. Temperature in chip
          Amit Katz

          What do you mean "cut off"? Are you reaching max travels or are you getting an error that causes your solver to crash?

          • Re: Transient Analysis - To reach max. Temperature in chip
            Jared Conway

            Flow Simulation has solution completion criteria.

             

            In transient analysis that is generally total time.

             

            In your case you're asking for the criteria to be when the component gets to max temperature. it doesn't know when your component will reach max temperature until you run the analysis with no criteria for stopping the calculation.

             

            in all likelihood you will run the analysis until you see the temperature flatten out. that may be a localized maximium, it could be the absolute maximum.

             

            But you should also compare to steady state. That will give you another reference point to understand the potential behavior of your system. But steady state won't tell you if it exceeds some value to get to steady state.